Articulatory vocal tract synthesis in Supercollider

Research output: Contribution to conferencePaper




Conference18th Int. Conference on Digital Audio Effects (DAFx-15)
Conference date(s)30/11/153/12/15
Internet address

Publication details

DatePublished - 30 Nov 2015
Number of pages7
Original languageEnglish


The APEX system [1] enables vocal tract articulation using a reduced set of user controllable parameters by means of Principal Component Analysis of X-ray tract data. From these articulatory profiles it is then possible to calculate cross-sectional area function data that can be used as input to a number of articulatory based speech synthesis algorithms. In this paper the Kelly-Lochbaum 1-D digital waveguide vocal tract is used, and both APEX control and synthesis engine have been implemented and tested in SuperCollider. Accurate formant synthesis and real-time control are demonstrated, although for multi-parameter speech-like articulation a more direct mapping from tract-to-synthesizer tube sections is needed. SuperCollider provides an excellent framework for the further exploration of this work.

    Research areas

  • digital audio, acoustics, speech processing, Voice acoustics

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